Home / 15,139.12-20,873.85-9,832

Finding the Fourth Proportional to 15,139.12, 20,873.85 and 9,832

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Solution

The fourth proportional to 15,139.12, 20,873.85 and 9,832 is: 13,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.12 : 20,873.85 = 9,832 : x
  2. Step 2: Convert to fraction form
    15,139.12/20,873.85 = 9,832/x
  3. Step 3: Cross multiply
    15,139.12x = 20,873.85 × 9,832
  4. Step 4: Simplify right side
    15,139.12x = 205,231,693.20
  5. Step 5: Solve for x
    x = 205,231,693.20/15,139.12
  6. Step 6: Final answer
    x = 13,556.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.